Singapore has several Mathematics competition routes, and they do different jobs. Some provide an accessible first experience of non-routine problems; some are selective primary-school competitions; SMO moves into secondary and pre-university olympiad Mathematics and eventually full proof.
This calendar records the 2026 organiser-published cycle. It should not be copied forward into 2027 until organisers publish the next schedule.
2026 Singapore competition calendar
| Competition | Eligible route | 2026 timing |
|---|---|---|
| SASMO | Broad school-age range; level-specific papers | Singapore schools: 9 Mar–7 Apr 2026 |
| Raffles Mathematical Olympiad (RMO; formerly RIPMWC) | P4–P5 Junior; P6 Open | Round 1: 9 Apr 2026; invited Round 2 in May |
| APMOPS | Singapore P5/P6 routes | P6: 16 Apr; P5: 18 Apr; Invitation Round: 30 May 2026 |
| SMO Junior / Senior / Open | Secondary and JC | Round 1: 3–4 Jun; Round 2: 27 Jun / 4 Jul 2026 |
| NMO∑ | Primary 5 | 14 Jul 2026 |
Which route fits?
- First experience of competition Mathematics: a broad-entry contest can let a learner discover whether unfamiliar problems are enjoyable.
- Primary school depth: RMO, APMOPS and NMO∑ have different age/registration structures and problem formats.
- Secondary olympiad progression: SMO Junior and Senior move toward deeper number theory, combinatorics, geometry and algebra.
- Proof and national training: SMO Round 2/Open and later APMO/IMO routes require substantially more proof maturity.
Do not enter every competition
A learner does not need a full calendar of contests to become strong at Mathematics. Choose competitions that provide useful mathematical evidence and leave enough time for ordinary school Mathematics, rest and deeper untimed problem solving.
Use the Competition Hub for each canonical organiser route.
Official organiser information checked 28 September 2026: the 2026 calendar rows remain supported by Hwa Chong APMOPS, NUS High NMO∑, Raffles Institution RMO, Singapore Mathematical Society SMO and SASMO. This page deliberately does not project those dates into 2027 before the organisers publish the next cycle. Official routes: APMOPS · NMO∑ · RMO · SMO · SASMO.
Singapore Mathematics Olympiads: choose a route from learner fit, not prestige
Start with the learner’s current mathematical behaviour
Competition readiness is not the same as school grade. Look for willingness to stay with unfamiliar problems, secure arithmetic/algebra for the age, curiosity about patterns and the ability to explain an approach. A child who enjoys difficult questions but lacks one prerequisite may need bridging; a child already overloaded may need less, not more.
Competition formats differ
Some contests emphasise accessible problem solving across a broad population; others lead toward proof-heavy olympiad work. Multiple-choice speed, short answers and full written solutions demand different preparation. Families should read the current official format for the exact competition rather than treating all ‘Olympiad’ labels as equivalent.
Use the calendar as planning infrastructure
Registration windows, school selection processes and competition dates can change annually. A dated calendar should help families avoid clashes and sequence preparation, while official organisers remain the source of truth for current dates and eligibility.
Do not prepare by collecting competitions
Sitting many contests does not automatically produce stronger Mathematics. Choose a small number whose difficulty and style fit the learner. Leave enough time between events for problem review and actual skill development.
Build domains progressively
Number theory, combinatorics, geometry and algebra form useful olympiad domains. Younger learners can enter through parity, factors, systematic counting, patterns and visual geometry before formal proof becomes central.
Past problems should be studied, not merely scored
After attempting a problem, compare strategies, identify the decisive observation and retry after delay. Keep a strategy/error journal. The value of a past paper is the mathematical decision it teaches, not the percentile it predicts.
Train written reasoning
Even when a competition uses short answers, explaining why a result must hold builds deeper control. Proof-oriented competitions eventually require complete arguments, so reasoning should grow alongside answer speed.
Protect school foundations and wellbeing
Olympiad enrichment should not destabilise core curriculum, sleep or motivation. Pause or reduce competition load when the learner is chronically anxious, rushing schoolwork or losing foundational fluency.
A sensible annual route
Choose one entry-level or age-appropriate competition, review the evidence, then decide whether deeper domain training or a more demanding contest is warranted. Progression should follow demonstrated readiness rather than a fixed prestige ladder.
Keep the page current
Because organisers change dates, formats and eligibility, this page should retain dated calendar information and route readers to official competition sources. The durable owner is the decision framework; volatile facts require annual verification.
World Mathematics route: return to the World Mathematics Atlas for the wider map across competitions, school Mathematics, examinations, mathematical objects and university routes.